Process of forming fence-wire barbs



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PROGESS OF FORMING FENCE WIRE BARBS. No. 395,892. Patented Jan. 8, 1889.

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W. GENTi PROCESS OF FORMING FENCE WIRE BARBS.

Patented Jan. 8 1889.

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PROCESS OF FORMING FENCE WIRE BARBS. No. 395,892. Patented Jan. 8, 1889.

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UNITED STATES PATENT @EETCE.

\VILLIAM GENT, OF ROCKFORD, ASSIGNOR TO l-IIRAM ELLIVOOD, OF DE KALB,ILLINOIS.

PROCESS OF FORMING FENCE-WIRE BARBs.

SPECIFICATION forming part of Letters Patent No. 395,892, dated January8, 1889.

Application filed April 16, 1887. $erial No. 235.042. (N model.) 7

To all 112 mm if may (u/worn.-

Be it known that 1, WILLIAM GENT, a citizen of the United States,residing at Rock- 1 ford, in the county of \Vinnebago and State of jIllinois, have invented a new and useful Pro- 5 cess of FormingFence-Wire Barbs, which I the longitudinal wire in such manner that it 1shall maintain its position, and not be liable I 5 to be turned ortwisted upon the wire; secondly, the provision of a sharp or needlepoint, which shall. be elfcetive in repelling stock. The form of barbwhich has been found to maintain its position upon the longi- 2o tudinalwire most satisfactorily is the barb made from sheet metal; but ithasbeen found impracticable with due regard to economy of manufacture togive the barb made from. sheet metal. sufficiently acute points toperround and pointed ends shall project thereform the functions requiredof fence-barbs. It is of course possible to procure'a sharp point upon asheet-metal barb by filing or grinding after the cutting of the barb;but in practicalmanufacture this operation of filing 0 or grinding isimpracticable, it being necessary, in order to produce barb fence-wireat current market rates, to form and sharpen the barb at a singleoperation. In consequence of this necessity the sheet-metal barb,

5 although it possesses considerable advantages over the round barb inthe matter of a secure bearing or setting upon the longitudinal wire,has given way to the barb formed of round wire, in which the sharp orneedle point is ob- 0 tained by a single diagonal cut or shear, and theingenuity of inventors in this line has been principally devoted tosecuring the proper firmness of setting by wrapping the barb about thelongitudinal wire or wires in various shapes and convolutions, and toovercoming in this way the natural inaptitude of a round barb-wire forsecure fastening upon the longitudinal fence-wire.

My present invention has for its object the production of a barb whichshall combine the several advantages of the fiat and the round barb; andto that end I have invented a process of. manufacturing barbs out ofround wire and applying them to a longitudinal strand entirely distiimtand apart from methods heretofore employed for manufacturingand securinground-wire barbs to longitudinal strands, wherebyl obtain a fence madeentirely of round wire, and in which the setting of the barbs upon thelongitudinal strands is as firm and secure as though the barbs were madeoriginally of sheet metal, and with a simplicity of construction equalto that of a fence having sheet-metal. barbs.

To this end my invention consists in flattening the wire from which thebarbs are made for short distances at intervals of its length, roundportions being left between adjoining flattened portions, in dividingsaid wire into barbs, by diagonally shearing the round parts leftbetween the flattened parts, and applying the barbs so obtained to thelongitudinal strand by wrapping them about the strand in such mannerthat the flattened portion shall rest against the longitudinal strandand the from, forming the repelling points orbarbs of the fence.

In the drawings annexed hereto and forming a part of this specification,I have shown a mechanism adapted to carry out the process above referredto, said mechanism being one of many equivalent forms which might bedevised for the purpose.

111 the drawings, Figure 1 is a plan view of the machine; Fig. 2, a sideelevation, a portion thereof being removed and a part being in sectionon the lines cu m, Fig. "Fig. 3 is a front view of the machine. Fig. atshows the barb wrapped about the wire, and Fig. 5 illustrates thewrapping of the barb.

Bases A support perpendicular standards A, upon which followers A" slideup and down, these followers being supported by helical springs A coiledabout the standards A and resting upon the bLHOS A. A top piece, A restsupon and secures together the upper ends of the standards A. Theposition of the followers A" with reference to the basesA is determinedby two screw-shafts, D, screw-threaded into top piece, A and bearingupon followers A whereby said follow= IOO ' til it comes between theshears ll Il, which are operated at suitable intei'mls by means of camor other appropriate connections with the main shaft b, soastoseverthebarbavire diagonally at each point where the round wire 1 islett between the tlatte1'1ed portions, thus 1 producing a barb having atits center a itlattened portion and at each end a round portion providedat each end with a sharp or needle point. This barb may he twistedaround the longitudinrd strand of tence-wire trtpresentwl in thedrawings by the letter Journaled in bases A is the shal't ll, carrying aroller, 13'. preferably olf chilled iron, to which is secured bytap-bolts l' a gearwheel, l". in the followers A, and has attachedthereto a second roller, preferably otehillcd iron,the outer(.ylindrieal snrlaec of which is ribbed longitudinally. This roller Chasconnected with it by means of tap-bolts a gear wheel, C, adapted tomesh with gear-wheel B. Tubular guides l1 are provided for di rectingthe wire from which barbs are to be made simultancously with theshearing or subsequently thereto by the twisting mechanism l 1 or otherappropriate means.

A second shatt', is journaled 1 between the rollers, and a tubularguidc. (1, for j directing the course oi? the wire after it has left therollers. In front; of these rollers and the several devices described.are located shears ll II, [or severing the barbs, at the the same timegiving them the desired needle-point by means of a diagonal cut,twisting mechanism I, for twisting the barb about the longitudinal't'ence-wire, and l'eed mechanism J, for feeding on the longitudinalstrand, that the barbs maybe applied to it at proper intervals. Theseseveral parts of the machine are of ordinary construction, and beingwell-known to persons skilled in. the art olf manufacturi11g barbwire,do not require detailed description in this specitication.

To operate the machine, the wire .l'rom which f the barbs are to be madeis inserted between the rollers ll these rollershaving been previouslyadjusted to thci r relative positions. Power is applied to one of thesl'n'it'ts, preferably l3. The barb-wire is fed tor\\"ard either by thefriction between it and the rollers or by independent means, and eachof. the ribs or projections formed upon the outer eylindrical face ofthe roller produces a tlattening' or indentation upon the wire theseribs being each of a proper length to llatten such a portion of the wireas may be sut'tieient to wrap about the strand ol. longitudinal wire,and the ribs twingseparated from each othert'rom center to center by adistance equal to the length of the desired barb. The effect upon thewire will obviously be to produce a succession of flattened portionsseparated by round portions. This wire isithen pushed forward 11nllythis process l obtain from a round. wire a barb which, so far as itscapability of permanent and secure setting upon a longitudi nal wire isconcerned, has all the advantages of a barb made from sheet metal, andwhich at the same time has preserved the capability of' takinganeedle-point from the singlco mration of shearing, and when this barbhas been wound around the hmgittulinal strand Ihave obtained a tencewirewhich, in security of l the barb and el't'eetiveness in repelling stock,

is equal to any known l'e1'1cewir while at the same time it rivals everyknown term of barb l'ence wire in simplicity and economy ofconstruetion, presenting a combination of effectiveness and cheapnessnot heretofore oh taincd. 1

As will be observed, the machine which I have described will have ateinleney to flatten the wire on both sides, tho1'1gh, perhaps, to agreatca' degree upon one side than the other. It is obvious that; byconstructing the lower roller, 3, with a cireumt'erential groove tittedto the wire the flattening el'l'eet may be confined to one side oi thebarb. T1 is innnate rial to my present invention whetherthebarbtlattened on one side or both.

.llaving thus described my in vent ion, whatl claim, and desire toprotect b v lletters Patent, is

The method ot. [forming and applying barbs to the supportiug-wires inwire-fencing, which consists in flattening the round wire from which thelntrbs are to be l'ormed at certain interv.-1ls thronghmlt; its length,then coiling the same at the foremost flattened portion around the s'u'iporting-wire, and simultaneonsly or subsequently severing the wire at;the round portion between the flattened parts by a diagonal cut to formthebarbs, and continuing the operation, substantially as described.

WM. GENT.

Witnesses:

L. L. llltiininstnr, HENRY L. 1 mm.

TOO

